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math
library predicatesThere is one binary predicate, islessequal
, and several unary
predicates, isinfinite
, isnan
, isnormal
, isubnormal
and iszero
.
The predicate islessequal
takes a pair of floating point
numbers (x,y)
as an argument, and returns
nil
for a false result and (nil,nil)
for a true result.
The unary predicates have the obvious interpretations as classification functions, and should probably be used in preference to comparison with constants in case the representations aren’t unique.
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